Yes I have.
I appreciated you posting about it so, based on your recommendation, I have been using Vito for the last couple of days.
I like Vito's visual appearance, and I like Vito's ability to insert pre-written texts.
But, I want to be able to quickly access a recipient and send a text to them with just a few taps on the screen. HTC's "my favorites' is much faster and easier doing this than SMS/Vito.
If I was willing to scroll to a recipient's name, I would just use WM 6.5 without HTC Sense. That would be much faster and easier than HTC Sense AND Vito SMS.
If Vito/SMS can be modified to work in conjunction with HTC's My Favorites, I will definitely try it out again.